Difference between a FIXED attribute vs enum with one value?

[James Tauber]

> > In the first case I define an attribute xml:link to have a CDATA type
> > that is fixed at the value "simple".  In the second case I define an
> > attribute xml:link to have an enumeration type with one possible value,
> > and it defaults to that one value.  Seems to me like these definitions
> > are semantically equivalent. Yes?  /Roger
>
> In this case, yes; in general, no, because enumerated values must
> be nmtokens, whereas a CDATA FIXED attribute can have any value,
> like an URL.

And whitespace normalisation is different, too.

<foo xml:link="simple"> and <foo xml:link="       simple          "> will
only be treated as the same in the case of the enum.

James


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